<?php
/**
 * Copyright (c) [2019] [吴跃忠]
 * [selibra] is licensed under the Mulan PSL v1.
 * You can use this software according to the terms and conditions of the Mulan PSL v1.
 * You may obtain a copy of Mulan PSL v1 at:
 * http://license.coscl.org.cn/MulanPSL
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
 * PURPOSE.
 * See the Mulan PSL v1 for more details.
 */

namespace ckeeper\db;

use Selibra\Files\Config;
use Selibra\Model\Build\ConnectBuilder;
use Swoole\Coroutine;

class SQLiteConnectBuilder extends ConnectBuilder
{

    protected static array $dbc;

    public function db(): \PDO
    {
        if (isset(self::$dbc[Coroutine::getCid()])) {
            return self::$dbc[Coroutine::getCid()];
        }
        $dsn = "sqlite:" . Config::getRootPath() . '/resource/db/ckeeper.db';
        self::$dbc[Coroutine::getCid()] = new \PDO($dsn);
        defer(function () {
            unset(self::$dbc[Coroutine::getCid()]);
        });
        return self::$dbc[Coroutine::getCid()];
    }

}
